Thrips parvispinus Webinar 3: Attacking Parvi from All Sides

*IPM Staff at a local greenhouse inspecting mandevilla flowers for Parvi.*

This post was written by Jessie deHaan (Research Technician, Vineland Research and Innovation Centre) and Dr. Sarah Jandricic (Greenhouse Floriculture Specialist, OMAFA).

Part 1 of the three-part webinar series on Thrips parvispinus focused on controlling incoming thrips on cuttings, while Part 2 shared the interesting behaviour and ecology that we’ve learned about Thrips parvispinus (Parvi) that could help us better manage this pest.

The final webinar is all about exploring Parvi IPM in greenhouse trials. Combining biologicals, chemical applications and other IPM interventions throughout plant production may help give you the best footing against Parvi – and other concurrent pests – while avoiding pesticide resistance.

Read on for the link to the webinar and for our written summary.

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In Case you Missed it: UofF Webinar on Latest Thrips parvispinus Research

On March 12th, 2025, Dr. Alexandra Revynthi’s lab (University of Florida) gave an amazing update on what they’ve been working on with regards to Thrips parvispinus. A lot of this was important basic knowledge about their biology, such as development time and survival at high temperatures. There were also quite a few lab and small greenhouse trials looking at potential biocontrol agents.

Some of this will be information we build on to create effective IPM programs for Parvi in the future. But some of these findings, you could put into use right now.

You can go watch the full webinar using the link in the full blog post, or read my summary notes and see what I thought were the important take-aways.

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In Case you Missed it: “A Pain in the Parvi” GrowON Webinar Recording (Plus, Another Thrips parvipsinus Webinar with GrowPro!)

In case you missed the GrowON webinar by myself and Judy Colley from Plant Products on Jan 29th, we’ve now uploaded to Youtube!

You can find it the ONFloriculture Youtube page, along with lots of other useful videos and webinars.

Are recorded webinars not your thing? Well, then you have two additional options!

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